Abstract
Most current attempts to achieve reliable knowledge sharing on a large
scale have relied on pre-engineering of content and supply services.
This, like traditional knowledge engineering, does not by itself
scale to large, open, peer to peer systems because the cost of being
precise about the absolute semantics of services and their knowledge
rises rapidly as more services participate. We describe how to break
out of this deadlock by focusing on semantics related to interaction
and using this to avoid dependency on a priori semantic agreement;
instead making semantic commitments incrementally at run time. Our
method is based on interaction models that are mobile in the sense
that they may be transferred to other components, this being a mechanism
for service composition and for coalition formation. By shifting
the emphasis to interaction (the details of which may be hidden from
users) we can obtain knowledge sharing of sufficient quality for
sustainable communities of practice without the barrier of complex
meta-data provision prior to community formation.
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